钢纤维自应力混凝土压力管道自应力计算方法

Calculation method for stress of steel fiber reinforced self-stressing concrete pipes

钢纤维自应力混凝土能大幅度提高压力管道的抗裂承载力。然而钢筋、钢纤维和自应力混凝土相互作用以及管道形状的影响使得混凝土的自应力计算很复杂。本文根据弹性力学理论,提出了不同截面形状(圆形和马蹄形)钢纤维自应力混凝土压力管道的自应力计算方法,并通过应变测量试验来验证,计算结果和试验结果符合良好。

According to the theory of elastic mechanics,a method for calculating the stress of steel fiber reinforced selfstressing concrete pipes with circular or horseshoe cross section is proposed.The validity of the method is verified by experiments.